A5022662520- Marine animal studies overview
- Genetic diversity and population structure
- Isotope Analysis in Ecology
- Marine and fisheries research
- Animal Vocal Communication and Behavior
- Genomics and Phylogenetic Studies
- Arctic and Antarctic ice dynamics
- Wildlife Ecology and Conservation
- Identification and Quantification in Food
- Marine and coastal plant biology
- Historical Studies and Socio-cultural Analysis
- Indigenous Studies and Ecology
- Marine Bivalve and Aquaculture Studies
- Cephalopods and Marine Biology
- Genetic and phenotypic traits in livestock
- Fish Ecology and Management Studies
- Oceanographic and Atmospheric Processes
- Genetic Mapping and Diversity in Plants and Animals
- Morphological variations and asymmetry
- Transportation Planning and Optimization
- Race, Genetics, and Society
- Evolution and Genetic Dynamics
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Chromosomal and Genetic Variations
- Listeria monocytogenes in Food Safety
University of Copenhagen
2016-2024
Grønlands Naturinstitut
2021-2024
University of St Andrews
2016-2023
Natural History Museum Aarhus
2016-2022
Sands
2016-2022
University of Groningen
2020-2022
Box (United States)
2022
Ilisimatusarfik
2022
Natural History Museum of Denmark
2022
École Supérieure d'Art et de Design Tours-Angers-Le Mans
2022
Abstract Despite no obvious barrier to gene flow, historical environmental processes and ecological specializations can lead genetic differentiation in highly mobile animals. Ecotypes emerged several large mammal species as a result of niche and/or social organization. In the N orth‐ W est A tlantic, two distinct bottlenose dolphin ( T ursiops truncatus ) ecotypes (i.e. ‘coastal’ ‘pelagic’) have been identified. Here, we investigated population structure E ast tlantic NEA dolphins on scale...
Abstract Reconstruction of the demographic and evolutionary history populations assuming a consensus tree‐like relationship can mask more complex scenarios, which are prevalent in nature. An emerging genomic toolset, has been most comprehensively harnessed reconstruction human history, enables molecular ecologists to elucidate population histories. Killer whales have limited extrinsic barriers dispersal radiated globally, therefore good candidate model for application such tools. Here, we...
The Arctic is warming at an unprecedented rate, with unknown consequences for endemic fauna. However, Earth has experienced severe climatic oscillations in the past, and understanding how species responded to them might provide insight into their resilience near-future predictions. Little known about responses of marine mammals past shifts, but narwhals (
Environmental conditions can shape genetic and morphological divergence. Release of new habitats during historical environmental changes was a major driver evolutionary diversification. Here, forces shaping population structure ecotype differentiation ('pelagic' 'coastal') bottlenose dolphins in the North-east Atlantic were investigated using complementary ecological approaches. Inference demographic history approximate Bayesian computation indicated that coastal populations likely founded...
Old genetic variants were key to the ability of bottlenose dolphins repeatedly adapt coastal waters across world.
Intraspecific variation in resource use by individuals of different age, sex or size may reflect differing energetic requirements and physiological constraints. Males females often show differences diet owing to sexual dimorphism, life histories and/or habitat use. Here, we investigate how influence the long-term foraging ecology belugas narwhals Greenland, using stable isotopes carbon nitrogen from bone collagen. We that males have a higher trophic level larger ecological niche than West...
Abstract We report emergence of ciprofloxacin-resistant Salmonella enterica serovar Kentucky in Canada during 2003–2009. All isolates had similar macrorestriction patterns and were multilocus sequence type ST198, which has been observed Europe Africa. Ciprofloxacin-resistant S. represents 66% all nontyphoidal sp. since 2003.
Abstract Determining discrete and demographically independent management units within wildlife populations is critical for their effective conservation. However, there a lack of consensus on the most appropriate criteria to delimit such units. A multi‐disciplinary, multi‐scale approach that combines tools informing in short‐term (i.e. photo‐identification), with mid‐term ecological tracers (stable isotopes – δ 13 C, 15 N 34 S– persistent organic pollutants –POPs–), mid‐ long‐term genetic...
A large, but poorly studied, bottlenose dolphin community, Tursiops truncatus, inhabits coastal waters of Normandy (Normano-Breton Gulf, English Channel, France). In this study, the social structure and abundance community were assessed using photo-identification techniques. Like other communities worldwide, resident has a fission–fusion with fluid associations among individuals (half-weight index = 0.10). Association patterns highly variable as indicated by high differentiation (S...
Several Arctic marine mammal species are predicted to be negatively impacted by rapid sea ice loss associated with ongoing ocean warming. However, consequences for whales remain uncertain. To investigate how responded past climatic fluctuations, we analysed 206 mitochondrial genomes from beluga (Delphinapterus leucas) sampled across their circumpolar range, and four nuclear genomes, covering both the Atlantic Pacific region. We found well-differentiated lineages, which were established...
Abstract Oscillations in the Earth’s temperature and subsequent retreating advancing of ice-sheets around polar regions are thought to have played an important role shaping distribution genetic structuring contemporary high-latitude populations. After Last Glacial Maximum (LGM), would enabled early colonizers rapidly occupy suitable niches exclusion other conspecifics, thereby reducing diversity at leading-edge. Bottlenose dolphins (genus Tursiops) form distinct coastal pelagic ecotypes,...
Abstract Protecting species often involves the designation of protected areas, wherein suitable management strategies are applied either at taxon or ecosystem level. Special Areas Conservation (SACs) have been created in European waters under Habitats Directive to protect bottlenose dolphins, Tursiops truncatus , which forms two ecotypes, pelagic and coastal. The SACs designated coastal based on photo‐identification studies that indicated dolphins relatively high site fidelity. However,...
The deep oceans of the Southern Hemisphere are home to several elusive and poorly studied marine megafauna. In absence robust observational data for these species, genetic can aid inferences on population connectivity, demography ecology. A previous investigation diversity structure in Gray's beaked whale ( Mesoplodon grayi ) from Western Australia New Zealand found high levels mtDNA diversity, no geographic stable demographic history. To further investigate phylogeographic patterns across...
Studies of cetacean evolution using genetics and other biomolecules have come a long way—from the use allozymes short sequences mitochondrial or nuclear DNA to assembly full genomes characterization proteins lipids. Cetacean research has also advanced from only contemporary samples analyzing dating back thousands years, retrieving data indirect environmental sources, including water sediments. Combined, these studies profoundly deepened our understanding origin cetaceans; their adaptation...
The harbour porpoise (Phocoena phocoena) is one of the common small cetaceans European waters. This discreet and undemonstrative species strongly represented throughout cold waters northern hemisphere, most abundant cetacean in North Sea. In last few years, some observations studies indicate a shift distribution waters, from regions Sea to southern Sea, English Channel Celtic may include comeback around coasts France. Harbour porpoises inhabit shelf-waters are often observed shallow...
Abstract The functioning of marine protected areas ( MPA s) designated for megafauna has been criticized due to the high mobility and dispersal potential these taxa. However, within a network small s can be beneficial as connectivity result in increased effective population size, maintain genetic diversity, increase robustness ecological environmental changes making populations less susceptible stochastic demographic effects (i.e., Allee effect). Here, we use both photo‐identification...
Accurate sex identification is crucial for elucidating the biology of a species. In absence directly observable sexual characteristics, wild fauna can be challenging, if not impossible. Molecular sexing offers powerful alternative to morphological approaches. Here, we present SeXY, novel sex-identification pipeline, very low-coverage shotgun sequencing data from single individual. SeXY was designed utilize low-effort screening and does require conspecific sex-chromosome assembly as...
Abstract Parallel evolution provides strong evidence of adaptation by natural selection due to local environmental variation. Yet, the chronology, and mode process parallel remains debated. Here, we harness temporal resolution paleogenomics address these long-standing questions, comparing genomes originating from mid-Holocene (8610-5626 years before present, BP) contemporary pairs coastal-pelagic ecotypes bottlenose dolphin. We find that affinity ancient samples coastal populations increases...
The Arctic is among the most climatically sensitive environments on Earth, and disappearance of multiyear sea ice in Ocean predicted within decades. As apex predators, polar bears are sentinel species for addressing impact environmental variability marine ecosystems. By integrating genomics, isotopic analysis, morphometrics, ecological modeling, we investigate how Holocene changes affected around Greenland. We uncover reductions effective population size coinciding with increases annual mean...